Static electricity Flashcards
What is static electricity?
a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.
What is electrical charges?
Each proton carries a positive charge and each
electron carries a negative charge. Protons are held tightly in
an atom’s nucleus, but the electrons can be transferred from
one atom to another. Negatively charged bodies have a
surplus of electrons (more electrons than protons) and
positively charged bodies have an electron deficiency (less
electrons than protons).
What are electrical field lines?
way of visualising electric fields.
Do opposites attract or repel?
They attract.
Do electrically charged objects Remain charged?
No
(est) What is coulombs law?
a law stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them.
(est) what is the formula for coulombs law?
F = k \frac{q_1q_2}{r^2}